Cyclic contractions of heart muscle are initiated by
O a. chemical reactions.
O b. the level of oxygen in the blood.
O c. electrical impulses.
O d. physical exercise.

Answers

Answer 1
B : level of oxygen in the blood

Related Questions

heart break song for u all
Crack did u hear u broke my heart its shattered Pain i feel pain wanna cut it out but i can't Yeah you said you would never leave but you did
Quite making me feel pain and crack did you hear it
My heart shattered Pain i don't want it but it's there and i feel cuz of u
Yeah you broke my heart u made me cry the tears burn like fire
I don't need to visit hell i live in hell yeah crack and then glass breaks Yeah it cuts my skin im broken now so tired of this s** yeah oh yeah U need to choose me or u rules choose or lose me yeah You broke me again no more u wont get me again yea Pain i feel it in my veins yeah fire the tears they feel like fire
Crack its shattered u broke it come fix this bby
Yeah u broke me can let you win
So i need to visit hell cuz i live in it rn yeah Oh you say u love me u call me baby but its a lie cuz u chose her over me Oh yeah oh yeah u chose her over me so stop come fight this war the tears they pour oh yeah Pain can u feel my pain u deserve pain im nun but a saint yeah oh yeah
Crack and pain the bloods running down my wrist yeah cuz of u im dripping blood yeah Crack crack pain pain can u feel and hear my cries for help no cuz ima a mistake that u made yeah oh oh yeah And the last blood drop feel and i'm gone oh yeah i'm gone so far gone im dead cuz u left u broke my heart its all ur fault i blame u I blame you it's all your fault all the bull s** games u played on me well no more no more…..

Answers

Answer:

aww thats helps

Explanation:

Answer: ATE IF U BECOME A SINGER IM U #1 SUPPORTER

Explanation:

Do memes make the internet a better place? Explain.

Answers

Answer:

y e d

Explanation:

Answer:

without memes, the internet would not be what it is today

Explanation:

memes shaped the joking side of the internet, and yes, did the math, memes make up 2.455552% of all videos on the internet (aproxemitley) and i know that  doesnt seem like that much, but trust me, it is

Which of the following is the correct term for a severe gluten intolerance?
Anemia
Celiac disease
Eczema
Hypochondria​

Answers

Answer:

Celiac Disease

Explanation:

People with celiac disease cannot consume gluten without damaging their digestive system.

The answer is B Celiac Disease

Which of the following statements about developing a personal fitness program is NOT true?
A. When developing a personal fitness program, it is important to implement strategies that will help maintain the program as well as give it a successful start.
B. Personal factors such as age, health concerns, and likes are important to consider when developing a personal fitness program.
C. The starting skill level of the physical activities included in a personal fitness program should be determined from other individuals' fitness programs.
D. The FITT principle should be used when developing a personal fitness program.

Answers

Answer:

C

Explanation:

Paulo wants to become a nursing assistant. He received data back about his written competency test. It states he
missed questions related to helping patients feed and clothe themselves. Which set of topics should he review before
retaking the test?
O physical care skills
O psychological care skills
O the role of nursing assistants
O the role of healthcare agencies

Answers

The answer is A. physical care skills
The answer is A, if Paulo wants to become a nursing assistant he needs to know the physical care skills in order to take care of his patients.

Is the patella apart of the circulatory system?

Answers

No it is not apart of the circulatory system

Answer:

No

Explanation:

In the graph above you can see how heart disease begins to rise quickly as a leading cause, hitting a high mark in the 1960's, and then begins a steady decline, especially after mid-1990. Why do you think this is?

Answers

Answer:

I think this is becouse peoplem are taking care of them self more I think

Explanation:

o(≧o≦)o

what alternative energy source produces carbon dioxide?

a. biomass
b. geothermal
c. moving water
d. nuclear energy​

Answers

The answer to your question is A.) Biomass

Explanation: Biomass and biofuels made from biomass are alternative energy sources to fossil fuels, coal, petroleum, and natural gas. Burning either fossil fuels or biomass releases carbon dioxide (CO2), a greenhouse gas.

Hope this helps :P

the answer to your question is A :)

HELPPP MEEE PLEASEEEEE!!!!

Help a girl out I'll give y'all 40 points plus the 10 from rn nd mark u brainliest

Answers

Answer:

1 Sight, or Visible Light, generally refers to electromagnetic radiation that can be seen in the human eye. ... Light can also be defined in terms of a stream of photons, a massless packet of energy, each moving with wavelike properties at the speed of light.

2 The location where the optic nerve attaches to your retina has no light-sensitive cells, so you can't see anything in it. This is the blind spot.

3

4 Rod cells act as specialized neurons that translate sensory stimuli in the form of photons (light particles) to chemical and electrical stimuli that can be processed by the central nervous system.  

 Cone cells, or cones, are one of the two groups of photoreceptor cells in the retina of the eye and are responsible for both color vision and color sensitivity of the eye; they work well in very bright light, similar to rod cells that work more in dim light.

5The sharpness or sharpness of perception, vision, or hearing.

6 red1  blue 2  yellow 3

7 cant see what it say

8The sharpness or sharpness of sight, vision, and hearing.

Explanation:

Neurons need a steady supply of carbon monoxide to live.
True or False

Answers

The answer would be True! Hope this helped!!

We chose food due to habits and emotions. True or false

Answers

Answer:

True trust me ik lol

Explanation:

but im frfr its true

could i have a brainlist

Very True............

I NEED AN ANSWER NOW PRONTO ASAP!!!!!!!!!!!

Which factors may influence teenage drinking? Select three options.

drinking games played by young people at parties
pictures posted on social media that include alcohol
celebrity endorsements for certain brands of alcohol
posters of teenage mothers holding a baby while drinking
parents never drinking in their teenager’s presence

Answers

Answer: the first three

Explanation:

Holding a baby while drinking and your parents NEVER drinking in front of you are less likely to influence drinking while the first three are more likely to influence.

Answer:

Well it could also be from depression amd stuff yk. But if you HAVE to choose from this i would say.....pictures posted on social media

Explanation:

abuse
battery
malpractice

assault
negligence
malpractice

Answers

malpractice, negligence
Malpractice,
Negligence. :)

Choose the word or phrase that best completes each sentence.

Genes are passed down, or
, from a person’s parents.
A component called
contains each gene’s instructions.
Any one of the 22 chromosomes that are not found on the X or Y chromosomes are called
.

Answers

Answer:

Genes are passed down, or inherited from a person’s parents.

A component called chromosome contains each gene’s instructions.

Any one of the 22 chromosomes that are not found on the X or Y chromosomes are called X-linked genes.

Explanation:

Hope this helps and have a nice day!

-KindnessMatters-

Answer:

The answers are Inherited, DNA, and Autosomes.

Explanation:

Here is proof:

is it bad I like playing with knives? XD

Answers

Answer:

Depends.

Explanation:

Just dont cut a limb off and I think you'll be fine.

Answer:

nope not at all, I like playing with them too

This is a Psychology question! So thank you in advance!
_____ are natural things that you do all the time and can be considered automatic.
A. Trait Tapes
B. Observational Tapes
C. State Tapes
D. Progressive Tapes

Thank you!

Answers

Answer:

A. Trait Tapes

Explanation:

I majored in Health

A _______ breaks through skin, causing a lot of bleeding and increasing the chances of infection.
O A. simple fracture
O B. complex fracture
O C. compound fracture
O D. stress fracture

Thank youu!

Answers

The answer is C- compound fracture

A crack or break in a bone deforms the anatomical structure due to greater physical force on the bone than normal. The fracture can be caused due to fall or an injury leading to broken bones.

Compound fracture breaks through the skin.

What are the types of fracture?

Fractures can be of various types depending upon their severity and the regions. It can be a simple, compound, stress or complex fracture.

A simple fracture is called a closed fracture as the skin over the bones does not get torn or broken and the bones remains under the skin.

A complex fracture is a type in which the bones are broken more severely and requires more attention as compared to the simpler fracture. It has a combination of the fractures occurring together like open and multiple fractures at the same time.

Compound fracture results in broken bones and the skin are also torn in this type. The broken bone fragment pierces the skin and comes to the outer surfaces. This type of fracture makes the skin more sensitive to infections as the wound is open.

A stress fracture occurs due to the overuses and affects the probity of the bones. A repetitive force on the bones results in this type of fracture.

Thus, option C is correct.

Learn more about fractures here:

https://brainly.com/question/9176117

5 reasons players get substituted in American football?

Answers

Answer:

In association football, a substitute is a player who is brought on to the pitch during a match in exchange for an existing player. Substitutions are generally made to replace a player who has become tired or injured, or who is performing poorly, or for tactical reasons (such as bringing a striker on in place of a defender). Unlike some sports (such as American football, ice hockey or kabaddi), but like in baseball, a player who has been substituted during a match takes no further part in it.

Most competitions only allow each team to make a maximum of three substitutions during a game and a fourth substitute during extra time, although more substitutions are often permitted in non-competitive fixtures such as friendlies. A fourth substitution in extra time was first implemented in recent tournaments, including the 2016 Summer Olympics, the 2017 FIFA Confederations Cup and the 2017 CONCACAF Gold Cup final.[1][2][3][4] A fourth substitute in extra time has been approved for use in the elimination rounds at the 2018 FIFA World Cup, the UEFA Champions League, and the UEFA Europa League.[,5][6] Each team nominates a number of players (typically between five and seven, depending on the competition) who may be used as substitutes; these players typically sit in the technical area with the coaches, and are said to be "on the bench". When the substitute enters the field of play it is said they have come on or have been brought on, while the player they are substituting for is coming off, or being brought off or substituted.

A player who is noted for frequently making appearances, or scoring important goals, as a substitute is often informally known as a "super sub".

Explanation:

Which of the following foods contain all the essential amino acids?
A. Plant foods
B. Fried foods
C. Animal-derived foods
D. Processed foods

Answers

Answer:

The answer would be B.

Explanation:

Fried foods.

I was holding my brother and I knew I smelled something. Have you changed a poopy diaper before?

Answers

Answer:

Imao yep

Explanation:

Answer:

too many times :c

Explanation:

Why are more medical and nursing schools adding courses and lessons on effective communication to their curriculum?

A) Doctors and nurses will be increasingly responsible for publishing scholarly articles in professional Journals as a condition of
employment

B) When doctors and nurses communicate effectively with one another and with patients, the number of medical errors not only falls,
the quality of patient care rises.

C) The majority of nursing and medical students enrolling in school today do not speak English.

D)All of the above

Answers

Answer:

B) When doctors and nurses communicate effectively with one another and with patients, the number of medical errors not only falls,

the quality of patient care rises.

Explanation:

most types of bacteria cannot live in foods that are.
A. Acidic.
B. Neutral.
C. Alkaline.
D. Odorous.

Answers

Answer:

A

Explanation:

Most bacteria cannot live in foods that are acidic because the acid acts as a repellent to it. If this is a multiple choice question your best bets are A and C

What is not an example of an opioid?
ar Heroin
b. Hydrocodone
C. Morphine
d. Naloxone

Answers

Answer:

d

Explanation:

the first three are opioids

d. is not an example of an opioid.
you can count the ready as an example!!
:))

What are some good flexibility exercises?

Answers

Answer:

Forward Lunges

Side lunges

Cross- over

Standing Quad Stretch

There is many more :))

Answer:

Will these help? If they do let me know :)

Your elderly maid –servant is alone at home and your parents are not in town. Suddenly, she falls ill. As a responsible member of the family, what would you do to help her?

Answers

Pay all her bills everything etc.
Ajhdbhfkvfetfthvdrhkigdyh

What aspect of the health triangle best describes each example:
Expressing your anger without violence
The absence of disease
Having satisfying relationships

options are
1.physical health
2. social health
3. mental health

Answers

Expressing your anger without violence = 3.

Absence of disease = 1.

Having satisfying relationships = 2.

I assume this is matching... sorry if I’m wrong

What are some benefits of being alcohol free?

Answers

Answer:Weight loss. ...

Improved memory function. ...

Deeper sleep. ...

Balanced moods. ...

Improved heart health. ...

Enhanced liver function. ...

rinking makes us feel bad. ...

Alcoholic drinks contain fat, sugar and alcohol, none of which will give us the body of our dreams!

Alcohol has ZERO health benefits. ...

Drinking won't work. ...

Alcohol is an addictive depressant drug, it just doesn't say it on the tin. ...

Alcohol can increase your risk of cancer.

Explanation:

(please explain well :) Is it normal to have ptsd a few years later after a traumatic experience? & What are the main signs of ptsd?

Answers

Answer:

completely

Explanation:

Symptoms may include nightmares or unwanted memories of the trauma, avoidance of situations that bring back memories of the trauma, heightened reactions, anxiety, or depressed mood.

Yes!
Signs of ptsd includes: having flashback, feeling unsafe, anxiety... etc.

Which of the following are considered necessary preventative measures to stay
safe from biological agents?
Select the 3 answer options that apply.
Use safer medical devices
Avoid patient contact
Isolate healthcare workers from patients

Answers

Answer:

There are only three options but the most correct on is use safer medical devices

Answer:

Is use safer medical device, Use PPE, Use safe injection practices

Explanation:

Trust, I just did this

if x=6.473, and y=7.196, why does my dad still not love me?

Answers

Answer:

I'm sorry I can't really help you with this question

Because you needed milk and he never came back!
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